Unknown

Dataset Information

0

Short FtsZ filaments can drive asymmetric cell envelope constriction at the onset of bacterial cytokinesis.


ABSTRACT: FtsZ, the bacterial homologue of eukaryotic tubulin, plays a central role in cell division in nearly all bacteria and many archaea. It forms filaments under the cytoplasmic membrane at the division site where, together with other proteins it recruits, it drives peptidoglycan synthesis and constricts the cell. Despite extensive study, the arrangement of FtsZ filaments and their role in division continue to be debated. Here, we apply electron cryotomography to image the native structure of intact dividing cells and show that constriction in a variety of Gram-negative bacterial cells, including Proteus mirabilis and Caulobacter crescentus, initiates asymmetrically, accompanied by asymmetric peptidoglycan incorporation and short FtsZ-like filament formation. These results show that a complete ring of FtsZ is not required for constriction and lead us to propose a model for FtsZ-driven division in which short dynamic FtsZ filaments can drive initial peptidoglycan synthesis and envelope constriction at the onset of cytokinesis, later increasing in length and number to encircle the division plane and complete constriction.

SUBMITTER: Yao Q 

PROVIDER: S-EPMC5452018 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Short FtsZ filaments can drive asymmetric cell envelope constriction at the onset of bacterial cytokinesis.

Yao Qing Q   Jewett Andrew I AI   Chang Yi-Wei YW   Oikonomou Catherine M CM   Beeby Morgan M   Iancu Cristina V CV   Briegel Ariane A   Ghosal Debnath D   Jensen Grant J GJ  

The EMBO journal 20170424 11


FtsZ, the bacterial homologue of eukaryotic tubulin, plays a central role in cell division in nearly all bacteria and many archaea. It forms filaments under the cytoplasmic membrane at the division site where, together with other proteins it recruits, it drives peptidoglycan synthesis and constricts the cell. Despite extensive study, the arrangement of FtsZ filaments and their role in division continue to be debated. Here, we apply electron cryotomography to image the native structure of intact  ...[more]

Similar Datasets

| S-EPMC2629247 | biostudies-literature
| S-EPMC5016829 | biostudies-other
2020-11-15 | E-MTAB-9696 | biostudies-arrayexpress
| S-EPMC3361441 | biostudies-literature
| S-EPMC3008173 | biostudies-literature
| S-EPMC5485650 | biostudies-literature
| S-EPMC3907238 | biostudies-literature
| S-EPMC3824704 | biostudies-literature
| S-EPMC5319824 | biostudies-literature
| S-EPMC7811198 | biostudies-literature